I got these off the site www.tremors4.com
Tremors 4 began filming February 11th, 2003 and had a shooting schedule of 5 weeks. It was directed by S. S. Wilson.
Tremors 4 has a tentative release date of October 2003
The movie will star Michael Gross, Sara Botsford, Brent Roam, Ming Lo, Lydia Look, Sam Ly, J.E. Freeman, and August Schellenberg
oh and theres going to be a game aswell🙂 a fps i think!!
and there some set photos here http://stampede-entertainment.com/chronicle/tremors4?&page=1 there not to good🙁